/* author: aakash bajaj- @educationmoment */
@font-face {
  font-family: 'Open Sans';
  src: local('Open Sans'), local('OpenSans');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

:root{
  --background:#f5f5f5;      
  --foreground:#222;          
  --uic-blue:#001E62;
  --uic-red:#D32F2F;
  --accent:#F6C445;           
  --muted:#e0e0e0;
  --card:#fff;
  --shadow-card: 0 2px 8px rgba(0,0,0,.08);
  --shadow-elevated: 0 4px 16px rgba(0,0,0,.15);
  --radius:4px;
}

* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  margin:0; color:var(--foreground); background:var(--background);
  font-family:'Open Sans', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.5;
}

.container-1140{ max-width:1140px; margin:0 auto; padding:0 20px; }

.navbar {
  position:fixed; top:0; left:0; right:0; z-index:999;
  background:#222; color:#fff; box-shadow:0 2px 10px rgba(0,0,0,.2);
}
.navbar .inner{ display:flex; align-items:center; justify-content:space-between; height:60px;}
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; color:#fff; }
.brand .logo{ width:28px; height:28px; border-radius:6px; }
.brand span{ font-weight:700; letter-spacing:.2px; }

.nav-links{ display:flex; gap:20px; align-items:center; }
.nav-links a{ color:#fff; text-decoration:none; opacity:.9; font-weight:600; }
.nav-links a:hover{ opacity:1; text-decoration:underline; }

/* mobile menu */
.nav-toggle { display:none; background:transparent; border:0; color:#fff; font-size:22px; }
@media (max-width: 860px){
  .nav-links{ display:none; position:absolute; left:0; right:0; top:60px; background:#222; padding:12px 20px; flex-direction:column; }
  .nav-links.show{ display:flex; }
  .nav-toggle{ display:block; }
}

section{ padding:80px 0; }
.pt-hero{ padding-top:100px; }

/* for index */
.hero { 
  color:#ff0000; text-align:center; padding:120px 0; 
  /* background:linear-gradient(135deg, rgba(3, 0, 166, 0.95), rgba(0,34,102,.85)), url('assets/hero.jpg') center/cover no-repeat; */
  background: url('assets/winners.jpg') center 25%/cover no-repeat;
  box-shadow:0 8px 32px rgba(0,34,102,.35);
} 
.hero h1{ font-size:56px; margin:0 0 14px; }
.hero p.lead{ font-size:20px; opacity:.95; max-width:820px; margin:0 auto; }

.hero--secondary{ background:linear-gradient(135deg, rgba(0, 32, 174, 0.95), rgba(0,34,102,.85)); }
.hero--accent{ background:linear-gradient(135deg, rgba(0, 32, 174, 0.95), rgba(0,34,102,.85)); }
.hero--primary{ background:linear-gradient(135deg, rgba(0, 32, 174, 0.95), rgba(0,34,102,.85)); }

/* for lunabotics page */
.hero-lunabotics {
  color:#fff; text-align:center; padding:120px 0; 
  background: url('assets/lunabotics.jpg') center/cover no-repeat;
  box-shadow:0 8px 32px rgba(0,34,102,.35);
}
/* for air page */
.hero-air {
  color:#fff; text-align:center; padding:120px 0; 
  background: url('assets/air.jpg') center/cover no-repeat;
  box-shadow:0 8px 32px rgba(0,34,102,.35);
}
/* for robobrawl page */
.hero-robobrawl {
  color:#fff; text-align:center; padding:120px 0; 
  background: url('assets/robobrawl.png') center/cover no-repeat;
  box-shadow:0 8px 32px rgba(0,34,102,.35);
}

/* Cards */
.card{ background:var(--card); border:1px solid var(--muted); border-radius:var(--radius); box-shadow:var(--shadow-card); padding:24px; }

.h-section{ text-align:center; margin-bottom:28px; }
.h-section h2{ font-size:34px; margin:0 0 10px; }
.divider{ width:80px; height:4px; background:var(--uic-red); margin:0 auto 10px; }
.divider--blue{ background:var(--uic-blue); }
.divider--accent{ background:var(--accent); }

.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width: 980px){ .grid-4{ grid-template-columns:repeat(2,1fr);} }
@media (max-width: 720px){ .grid-3, .grid-2{ grid-template-columns:1fr; } }

.stat { text-align:center; }
.stat .big{ font-size:30px; font-weight:800; color:var(--uic-red); }
.muted{ color:#666; }

.btn{ display:inline-block; border:1px solid transparent; border-radius:var(--radius); padding:12px 16px; 
      text-decoration:none; font-weight:700; transition:transform .15s ease, opacity .2s ease, background .2s ease; }
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--uic-blue); color:#fff; }
.btn-primary:hover{ background:#0008a8; }
.btn-outline{ background:transparent; border-color:#ffffff55; color:#fff; }
.btn-white{ background:#fff; color:#222; border-color:#fff; }
.btn-dark-outline{ border-color:#00000033; color:#222; }
.btn-dark-outline:hover{ background:#00000008; }

/* Feature list dots */
.dot{ width:6px; height:6px; background:var(--uic-red); border-radius:50%; display:inline-block; margin-right:8px; }

footer{ background:#222; color:#fff; padding:30px 0; margin-top:60px; }
footer a{ color:#fff; }

/* Sidebar gallery placeholder */
.sidebar{ background:#fafafa; border:1px solid var(--muted); border-radius:var(--radius); padding:16px; }
.sidebar h4{ margin:0 0 10px; }
.sidebar .thumb{ background:#ddd; height:380px; border-radius:6px; width: 100%; margin-bottom:8px; }

/* Utility */
.center{text-align:center;}
.space-top{ margin-top:20px; }
.flex{ display:flex; }
.items-center{ align-items:center; }
.justify-center{ justify-content:center; }
.gap-8{ gap:8px; }
.mt-16{ margin-top:16px; }
.mt-16 .img{ background:#ddd; height:380px; border-radius:6px; width: 100%; margin-bottom:8px; }
.mb-16{ margin-bottom:16px; }